Synthesis, Characterization and Antimicrobial Studies of Stem Bark Mediated Synthesis of Silver Nanoparticles From Adansonia digitata (L.)

In the present study green synthesis of silver nanopartiles (SNPs) is prepared by using aqueous stem bark extract of Adansonia digitata (L.) as a reducing, stabilizing and capping agent. The synthesized SNPs are characterized by UV-VIS Spectroscopy, FTIR, XRD, AFM, SEM with EDAX and TEM. Validation of SNPs was performed on 07 bacterial species and 05 fungal species. For preliminary conformation of SNPs to observe the colour change from light brown to thick brown shows the formation silver nanoaprticles and the 450 nms of UV-VIS studies shows the further confirmation of synthesized nanoparticles are SNPs. FTIR studies shows that the Phenols, Alkynes and Primary amines of Proteins are mainly responsible for the reduction of nanopartilces and AFM, SEM and TEM studies shows that the particles are spherical in shape and having the size between 5 to 30 nms. The EDAX pattern shows the 2.69 wieght percentage of silver present in the synthesized sample solution and XRD studies shows that the particles are mostly crystalline in nature. Further these biologically synthesized nanoparticles were found to be highly toxic against different multi drug resistant bacterial and fungal pathogens. This is the first report on synthesis of SNPs from stem bark of A. digitata was used for synthesis of SNPs and its antimicrobial studies.